Mill for rolling side-flanged center-bearing rails



(No Model.)

B. SIMPSON.

MILL FOR ROLLING SIDE FLA'NGBD CENTER BEARING RAILS. No. 394,024. Patented Dec. 4, 1888.

I I I I I' IA LQ VITZZIZeLMeJ: 1719672507".

UNITED STATES PATENT OFFICE.

EDXVARD SIMPSON, OF J OIINSTOYVN, PENNSYLVANIA, ASSIGNOR TO THE JOHNSON STEEL STREET RAIL COMPANY, OF KENTECKY.

MILL FOR ROLLING SlDE-FLANGED CENTER-BEARING RAILS.

SPECIFICATION forming part of Letters Patent No. 394,024, dated December 4, 1888.

I Application filed February 15, 1888. Serial No. 264,139. (No model.)

To aZl whom it may concern.-

ie it known that I, EDWARD SIMPSON, of Johnstown, in the county of Cambria and State of Pennsylvania, have invented new and useful Rolls for Rolling Side-iilanged Center- Bearing Rails, which invention is fully set forth and illustrated in the following specification and accompanying drawing.

The object of this invention is to provide a set of rolls for facilitating the rolling of sidefianged center-bearing rails having a crosssection, indicated by the last or final pass shown in the accon'ipanying drawing.

The invention will first be described in detail, and then particularly set forth in the claims.

In the accompanying drawing the figure shows in front elevation a pair of rolls, the letter A indicating the top roll and B the bottom roll. Said rolls are provided with six passes, numbered accordingly 1 2 4 5 (i.

The bloom having been first reduced to any shape of cross-section suitable to enter pass 1, is then entered therein, and, having been rolled through the same, is next successively. rolled in each of the following passes, being finished in the last pass, 6.

It will be observed that in the oblique pass 1 excessive draft is put upon the side ll. That in passes 2, 4, and 6, which are rightangled passes, the distinctive function is the formation of the side grooves, 71 71, said side grooves not being acted upon directly in passes 3 and 5, which are also right-angled passes. The piece of metal is alternately quarter-turned from passes 2 to G, inclusive. In all the passes from 2 to 6, inclusive, the action of the rolls is direct in the formation of the side lugs, G. The rail is delivered from the finishing-pass 6 in a reversed position.

The rolls may be mounted in any suitable housings of well-known construction.

I do not limit myself to the exact number or disposition of passes shown, as the number of passes and their distribution into roughing or reducing and finishing passes is to a certain extent arbitrary, being influenced by the length and diameter of the rolls, alight train of rolls calling for more passes with lighter draft than a heavy roll-train. It is also evident that the rolls can, if desired, be made three-high instead of two-high, as shown.

Having thus fully described my said improvement as of my invention, I claim- 1. A set of rolls for rolling side-flanged center-bearing rails provided with passes, substantially as hereinbefore described, having the conformations indicated in the accompanying drawing by the numbers from 1 to 6, inclusive, substantially as and for the purposes set forth.

2. A set of rolls for rolling side-flanged center-bearing rails provided with right-angled passes, of which the alternate passes have direct grooving action upon the rail, substantially as set forth.

EDWARD SIMPSON. \Vitnesses:

A. hIONTGOllIERY, F. P. BOWMAN. 

